The equilibrium constant of the following isomerisation reaction at 400K and 298K are 2.07 and 3.42 respectively. Which of the following is/are correct? I. The reaction is exothermic II. The reaction is endothermic III.

NTA Abhyas 2020

NTA Abhyas 2020 · Chemistry · Chemical Equilibrium

The equilibrium constant of the following isomerisation reaction at...

The equilibrium constant of the following isomerisation reaction at

\text{400}\text{K}

and

\text{298}\text{K}

are

\text{2}\text{.07}

and

\text{3}\text{.42}

respectively.
The equilibrium constant of the following isomerisation reaction at 400K and 298K are 2.07 and 3.42 respectively. Which

Which of the following is/are correct?
I. The reaction is exothermic
II. The reaction is endothermic
III. At

\text{400}\text{K}\text{50%}

of cis-butene and

\text{50%}

of trans-butene are present of equilibrium
IV. Both at

\text{298}\text{K}

and

400\text{K}

{k}_{1} = {k}_{– 1}

D. I only

As on increasing temperature

{K}_{eq}

is increasing so reaction is exothermic.